Several decades later, during the First Blackfyre Rebellion, Lord Damon Lannister was defeated by Ser Quentyn Ball outside the gates of Lannisport. Tybolt inherited the lordship from Damon when the latter died of the Great Spring Sickness in 210 AC. His own death, two years later, occurred under suspicious circumstances.[5] Tybolt's only heir was his three-year old daughter, Cerelle, who ruled Casterly Rock with her uncle Gerold as her regent, for less than a year. The suddenness of her death at such a young age caused rumors that Gerold, who inherited Casterly Rock after Cerelle, had played a role in the deaths of both Tybolt and Cerelle.[5] Gerold was struck by illness and grief following the death of his heir, Tywald, in 233 AC during the Peake Uprising, but roused himself after his second son, Tion, died during the Third Blackfyre Rebellion in 236 AC, and began preparing his third son, Tytos, for the rule of the Westerlands.[5]

Tytos inherited Casterly Rock in 244 AC. During his reign, the power of House Lannister waned, as Tytos was weak-willed and indecisive, and was willing to forgive most debts and insults. His eldest son, Tywin Lannister, took matters into his own hands when he arrested Lord Walderran Tarbeck. When Tarbeck's wife, Lady Ellyn Reyne, took three Lannisters captive in response, Tytos ordered everyone released. Nigh on a year later, both House Tarbeck and House Reyne were destroyed by Tywin during the Reyne-Tarbeck revolt.[5]

A Feast for Crows

A Dance with Dragons

After being bought as a slave by Yezzan zo Qaggaz, Tyrion introduces himself as "Yollo" to Yezzan's slave overseer Nurse, though he had felt tempted to introduce himself as the rightful Lord of Casterly Rock.[12]

Later on, Tyrion claims the title of Lord of Casterly Rock and signs his contract with the Second Sons as such.[13]

Claimant Lords of Casterly Rock

Tyrion Lannister, Tywin's second son and lawful heir until being condemmed for treason and regicide.[13]

Behind the Scenes

In earlier prints of The World of Ice & Fire, neither Cersei nor Cerelle Lannister are marked as "ruling lord or kings" in the Lannister Lineage. As both have been specifically stated as "Lady of Casterly Rock", this is an ommission. Tywin's brother Kevan Lannister is marked as a lord of Casterly Rock in The World of Ice & Fire. However, the Appendix of A Feast for Crows clearly lists Cersei as the Lady of Casterly Rock, as does the Appendix of A Dance with Dragons, despite the charges of high treason. Even if Cersei was stripped from her rights to Casterly Rock, she has two heirs who are to inherit the seat before Kevan, indicating this likely is a mistake.